Edward hammann



(No Model.)

B. HAMMANN.

WATER GLOSET.

No. 411,520. Patented Sept. 24, 1889.

N) PETERS. Pbnlwllihngnbhun'walhington. D. D

UNITED STATES PATENT OFFICE.

EDVARD HAMMANN, OF BROOKLYN, ASSIGNOR TO THE J. L. MOTT IRON VORKS, OF NEW YORK, N. Y.

WAT ER-CLOSET.

SPECIFICATION forming part of Letters Patent No. 411,520, dated September 24, 1889.

Application filed March 7, 1889. Serial No. 302,226. (No model.)

To aZZ whom, it may concern.-

Be it known that I, EDWARD HAMMANN, of Brooklyn, in the county of Kings and State of New York, have invented an Improvement in ater-Closets, of which the following is a specification.

Water-closets have heretofore been manufactured with a trap below the basin, in addition to the trap formed by the water in the basin, closing the discharge-opening therefrom, and in closets of this character a cistern has been made use of constructed so that the rush of water produces a minus pressure or suction in the chamber between the lower trap and the trap formed by the basin, so that the contents of the basin are siphoned out and flow away to the sewer. In closets of this character objection has arisen in consequence of the cistern drawing the air out from the chamber of the closet and discharging the same into the room, and to avoid this difficulty closets have been made in which a jet of water has been projected forcibly across the lower part of the basin and up the delivery-pipe toward the discharge or sewer pipe; but the rush of water across the basin is objectionable and the basin is complicated and dii'iicult to construct.

My present improvement consists in the combination, with the basin having an overflow-dam forming a trap, of the supply-pipe and an ejector between the basin and the overflow-dam, the ejector acting upwardly toward the dam, so as to produce a suction and siphoning to discharge with rapidity the contents of the basin over the dam and down through the discharge-pipe, so that the basin is rapidly emptied, and by a branch pipe and flushing-rim the sides of the basin are cleansed.

In the drawings, Figure 1 is a vertical section of my improved closet. Fig. 2 is a similar view in a slightly-modified form 5 and Fig. 3 is a section at the line a; as, representing the mouth of the ejector.

The basin A is of ordinary shape and provided with a downwardly-projecting wall 2 over the discharge-opening 3, and the bottom 4: of the basin extends up to the top of the dam 5, and this dam is Within the overflowpipe B, leading to the discharge or sewer pipe 0, and it will be seen that in consequence of the bottom of the wall 2 above the opening 3 being lower than the top of the dam 5 the water in the basin is retained to form a trap that prevents the escape of odors from the pipes B 0. At the back of the wall 2, and between the overflow-pipe B and the basin A, is the water-supply pipe E, with an ejector 6 at the lower end of such pipe, and there is a branch pipe 7 to the flushing rim 8 of the closet. This flushing-rim 8 is of any ordinary or desired character, and at or near the junction of the pipe E and the branch 7 is a connection for the pipe F, that leads to the supply cistern or reservoirfor the closet. The ejector 6 at the lower end of the pipe E is turned upwardly toward the dam 5, and it is preferable to contract the width of the opening and extend it in length parallel, or nearly so, to the top edge of the dam 5, so that the flushing-water as it descends through the pipes F, E, and 7, passes by the branch 7 and flushingrim to cleanse the walls of the basin, and the jet of water issuing from the ejector 6 toward the dam 5 produces a suction that draws the water and other contents rapidly out of the basin A and discharges the same over the dam 5, and this action is accelerated by the rush of water filling the overflow-pipesBand C, so that these become a siphon for entirely discharging the contents of the basin. The rush of water meanwhile continuing into the basin is sufficient to fill the same up to the level of the dam 5, so that the closet is left in a condition for subsequent use. The lower end of the pipe E and the ejector 6 being below the level of the top of the dam 5, the wa ter fills these parts and forms a trap that prevents the escape of any gases from the pipe 13 through the pipes E F, and there is no tendency for the ejector 6 to become clogged, because it opens in the direction of the discharge of the closet.

This closet is cheap to construct, easily kept clean, and there is no possibility of gas escaping so long as the basin is properly supplied with water, and a second trap to the closet is rendered unnecessary, the contents of the basin forming the only trap made use of.

I claim as my invention- 1. The water-closet basin having an overflow-dam 5 and discharge-pipe B, and a watersupply pipe in the back wall of the basin, be-

tween the basin and the overflow-pipe B, and the ejector at the lower end of the waterpipe and opening upwardly toward the dam 5, substantially as set forth.

2. The co1nbination,in a water-closet basin having a flushing-rim, of an overflow-dam 5, extending up from the bottom-of the basin, a

discharge-pipe B, a water-supply pipe E in the back wall of the basin, between the overflow-pipe and the basin, a branch pipe leading to the flushing-rim, and an ejector at the bottom of the water-supply pipe, the mouth of Which is elongated and is directed upwardly toward the discharge-dam, substantially as and for the purposes set forth.

Signed by me this 4th day of March, 1889.

EDWARD HAMMANN. \Vitnesses:

WM. P. REID, MAX GoEBEL. 

